Telephone.



K. NICHOLS TELEPHONE,

APPLICATION FILED APR, 19, 19:5.

Patentwi Feb 2%,1921

' awua-mlkw wi/Mwoow imw useful Improvementin UNITED STATES PATENTOFFICE.

KATHERINE NICHOLS, OF SINCINNAUI, OHIO) TELEPHONE.

1 216 480 Specification of Letters Patent, Patented F b Z O, 191-52;Application filed April 19, 1915. Serial No. $2,266.

To all whom it may concern:

Be it known that I, KATHERIN NICHOLS, a citizen of the United States,and residing; zit-Cincinnati, in the county of Hamilton and State ofOhio, have invented a new and Telephones, of which the followingspecification is a full disclo- My invention relates to an improvementin a telephonic apparatus, and is panticularly directed to a type ofinstrument hav ing two receivers which are definitely positionedrelative to the transmitter and automatically adjustable relative to theears of the user. t

The object of my invention is to provide a telephone instrument which,by the relative positions of the transmitters and receifvers, compelsthe "user to talk directly into the transmitter and at the same timeprevents personal contact therewith.

Another object is to provide 'a simple, strong and efficient instrumentcomprising a pair of, receivers and a transmitter combined in asinglestructural unit removably supported in a base orsoeket.

A further object is to provide a telephone instrument having'asupporting stud com bined with abuse or socket having a pair of contactplates included in the ringing or signal circuit of the telephone systemand controlled by the relative position of the supporting stud.

Another-object is to provide a telephone instrument comprising a pair ofreceivers and a transmitter all supported on a single fitting andforming a single structural unit.

These and many other advantages are afforded by this invention, and aredue not only to the specific construction herein shown, but to the broadunderlying principles upon which it is based.

All of these features and advantages will be more fully set-forth in thedescription of the accompanying drawings, forming a part of thisdisclosi'lre, and in such drawings like characters of reference denotecorresponding parts throughout the several views, of which Figure l is afront elevation. Fig. 2 is a side elevation partly in sec tion. Fig. 3is a bottom plan View. The transmitting andreceiving elements of theinstrument are secured to and'car' .ried by-a single fitting or couplingwhich tend across the axial line of t e tube 13. i

is of the gene]! il form of an inv'ertedT and will be hereinafterreferred to 'as'a T-cou pling. This T coupling consists of a hollo'spherical body portion 1 having anorifi in its upper siie to receivethe'transmitte 2-. Extending outwardly from either's of the body portionI are tubularproje tions 3 in w iich aresecured upwardl curved tubulararms 4 near the upper end of which are ieoured leafsprings 5, eatsupporting a receiver 6. Intermediate th receivers and tie arms 4, Iprovide flexible tubing conduit: 7. The normal positions or span of theivu receivers is slightly 'lesfs' io than a normm head width and theleaf springs tend lo hold said receivers coin 4 fortably to the earsoftlic user wh'eiif instrument in. use.

The circuit wires fromthereceivers tend downwardly through the flexibleduits 7 and tub'ilar arms 4e and into the hol, low body porth n 1 oftl1e"T-coupling where they are ineorporatedwith the transmitter-ii,circuit wires,'-to form a'cord 8 which extends o through an aperture insaid body po'rti and to the base portion of the instri'imen Extendingdownwardly from the body pai tion 1 of the T-coupling is an elongatdstud 9 having 1 fiber'conical tip-10. 'ilhe 35 base portion of theapparatus consists of a hollow base 11 and ap'edestal 12,"whiclr larsecured. together by a tube13 and anu'tl t stud 9. Secured in the base11 beneath the nut 14 is a plate 15 which serves as a sup port for aresistance coil 16 and a fiber terminal block 17 having a series ofbinding scrcwslS throu gh which the various electrical connectio isbetween the instrument and line wires are made. Secured to the terminalblock 17 is a pair of contact plates 19, 20, the plate 20 being elonated toex:

These ontact plates are included in the ringing or sign: .1 circuitandwhen the instrument is in iormal position, as shown, the conical fibeitip 10 of the stud 9 con tacts with the 10 .ver plate 20 and theweightof the instrume lt'nlOVeSdii out of contact with its companion contactplate 19, thereby breaking the signal circuit. A metal U-shaped strap 52is secured at its ends to the plate 15 and to said strap is secured abase-board 23. i

While I have shown "thesnpportingstudp 9 as'being of an elongated formit may be A of any desired length or shape or may be a part of one orboth of the arms et.

When it is desired to use the instrument, it is removed from the baseand such removal will allow the contact plate 20 to engage the contactplate 19, thereby coming of this unit in its holding socket,automatically controlling the electric connections.

Having described my invention, I claim: 1. A device of the naturedisclosed comprisingtwo receivers and a transmitter supported by asingle fitting, a stud secured to said fitting, a support for said stud,means within said support for completing the signal circuit of thetelephone system functioned by the removal of the stud from the support.

2. A device of the nature disclosed 00111- prising a hollow fitting, atransmitter secured thereto, arms radiating from said fitting, a pair ofreceivers, spring arms intermediate the receivers and the radiatingarms, a stud secured to the fitting, a support apertured to receive thestud, and means within the support for controlling the signal circuit .aof the telephone system,

- 3. A devicegbf the nature disclosed comprising a T-coupling, atransmitter securedthereto, arms radiating from said coupling,

40 apair' of receivers, yielding means interme diate the receivers andthe arms for definitely positioning said receivers relative to thetransverse plane of, the transmitter, and to automatically urge themtoward the axial line of the transmitter.

4. A device of the class described comprising'a base member, atransmitter and a pair on. relatively opposite receivers combined as aunit, and as a unit having a stem forming a handle therefor andalternatively a support adapted to be engaged in a-socket in said basemember.

5. A device of the nature disclosed comprising a base member, a pair ofreceivers and a transmitter combined as a unit, the transmitter as abase having arms connecting therewith at opposite sides and extendingtherebeyond in lines parallel with an axial line through thetransmitter, and a stem projecting axially from said base in a directionopposite to said arms, providing alternatively a handle for the unit anda coupling for engaging with said base member.

6. In a device of the nature disclosed, a standard constituting a socketsupport, a T- insert comprising expansible yoked receivers and amedially disposed transmitter, said .unit being held by and in swiveledrelation to the socket sup ort, and means \yh Tnaking and brea ng ofcontut'gt'botweeif said unit and socket appropriately inimises-or breaksthe electric si a1 circuit.

In witness whereo ,I hereunto subscribe my name, as attested by the twosubscribing Witnesses.

KATHERINE NICHOLS.

' Witnesses:

CLARENCE B. Fos'ma, L. A. BECK,

